National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rainfall on the Western Gulf Coast; Severe Thunderstorms in the Southern Plains Friday

A multi-day heavy rainfall event will continue over the western Gulf Coast through Monday. Slight Risks of excessive rainfall have been issued, and Flood Watches remain in effect through Monday evening. Scattered severe storms capable of producing large hail and damaging winds are possible across western portions of Texas and Oklahoma on Friday. Read More >

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

Light Rain

80°F

27°C

Humidity 90%
Wind Speed E 12 mph
Barometer 29.90 in (1011.8 mb)
Dewpoint 77°F (25°C)
Visibility 8.00 mi
Heat Index86°F (30°C)
Last update 22 May 8:54 pm ChST
Extended Forecast for

Agat GU

  • Tonight

    Tonight: Scattered showers. Mostly cloudy, with a low around 79. East wind 13 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 79 °F

    Scattered
    Showers

  • Saturday

    Saturday: Scattered showers and thunderstorms. Mostly cloudy, with a high near 86. East wind 13 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

    High: 86 °F

    Scattered
    Showers

  • Saturday Night

    Saturday Night: Scattered showers. Mostly cloudy, with a low around 78. East wind 14 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    Low: 78 °F

    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers. Partly sunny, with a high near 85. East wind 15 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    High: 85 °F

    Scattered
    Showers

  • Sunday Night

    Sunday Night: Scattered showers. Mostly cloudy, with a low around 78. East wind 14 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    Low: 78 °F

    Scattered
    Showers

  • Memorial Day

    Memorial Day: Scattered showers. Partly sunny, with a high near 85. Chance of precipitation is 30%.

    High: 85 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 78.

    Low: 78 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers. Partly sunny, with a high near 84.

    High: 84 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers. Mostly cloudy, with a low around 79.

    Low: 79 °F

    Chance
    Showers

Detailed Forecast

Tonight
Scattered showers. Mostly cloudy, with a low around 79. East wind 13 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Saturday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 86. East wind 13 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Saturday Night
Scattered showers. Mostly cloudy, with a low around 78. East wind 14 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Sunday
Scattered showers. Partly sunny, with a high near 85. East wind 15 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Sunday Night
Scattered showers. Mostly cloudy, with a low around 78. East wind 14 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Memorial Day
Scattered showers. Partly sunny, with a high near 85. Chance of precipitation is 30%.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 78.
Tuesday
A chance of showers. Partly sunny, with a high near 84.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 79.
Wednesday
A chance of showers. Partly sunny, with a high near 84.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 79.
Thursday
A chance of showers. Partly sunny, with a high near 85.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 79.
Friday
Partly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Agat GU
 13.38°N 144.67°E
Last Update:
6:05 pm ChST May 22, 2026
Forecast Valid:
9pm ChST May 22, 2026-6pm ChST May 29, 2026
 
Forecast Discussion
 
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Additional Resources

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Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation